title: Endodontic treatment of a maxillary central incisor with two roots.
abstract: OBJECTIVE
  This clinical report presents a rare case of maxillary central incisor with two separate roots.
  
  
  BACKGROUND
  Unusual morphology of the roots and root canals may exist in any tooth. Recognition of the dental anatomy and its variations is necessary for successful endodontic therapy. It is well known that maxillary incisors are usually single-rooted teeth.
  
  
  METHODS
  The root canals were instrumented with conventional hand files and Gates Glidden and obturated by using the lateral technique. Recall radiograph after 1 year shows the healing process of the preoperative apical periodontitis.
  
  
  CONCLUSIONS
  Clinicians should be aware of unexpected root canal morphology when performing root canal therapy. The present case demonstrated the importance of accurate preoperative radiograph and adequate access preparation.
authors.affiliation: Department of Endodontics, Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Amir
authors.initials: A
authors.lastname: Maghsoudlou
authors.forename: Hamid
authors.initials: H
authors.lastname: Jafarzadeh
authors.forename: Maryam
authors.initials: M
authors.lastname: Forghani
mesh_terms: D001729:Bismuth / Q000627:therapeutic use; D003786:Dental Pulp Cavity / Q000002:abnormalities / Q000000981:diagnostic imaging; D004853:Epoxy Resins / Q000627:therapeutic use; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000293:injuries; D008297:Male; D008437:Maxilla; D009811:Odontometry / Q000295:instrumentation; D010485:Periapical Periodontitis / Q000628:therapy; D011859:Radiography; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D012389:Root Canal Obturation / Q000379:methods; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods; D012390:Root Canal Therapy / Q000379:methods*; D012834:Silver / Q000627:therapeutic use; D014025:Titanium / Q000627:therapeutic use; D019227:Tooth Apex / Q000000981:diagnostic imaging; D014092:Tooth Root / Q000002:abnormalities* / Q000000981:diagnostic imaging; D055815:Young Adult
chemical_list: D004853:Epoxy Resins; D012387:Root Canal Filling Materials; D012834:Silver; C028044:epoxy resin AH-26; D014025:Titanium; D001729:Bismuth